<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注册页面</title>

<script>
    window.onload = function(){
        document.getElementById("form").onsubmit = function(){
            //验证用户名
            //验证密码
            //...
            //都成功则返回true
            //
            return checkUsername() && checkPassword();
        }

        document.getElementById("username").onblur = checkUsername;
        document.getElementById("password").onblur = checkPassword;
    }

    function checkUsername(){
        var username = document.getElementById("username").value;
        var reg_username = /^\w{6,12}$/;
        var flag = reg_username.test(username);
        var s_username = document.getElementById("s_username");
        if(flag){
            s_username.innerHTML = "<img height='25' width='35' src='../img/gou.png'>"
        }else{
            s_username.innerHTML = "用户名格式有误";
        }
        return flag;
    }

    function checkPassword(){
        var password = document.getElementById("password").value;
        var reg_password = /^\w{6,12}$/;
        var flag = reg_password.test(password);
        var s_password = document.getElementById("s_password");
        if(flag){
            s_password.innerHTML = "<img height='25' width='35' src='img/gou.png'>"
        }else{
            s_password.innerHTML = "密码格式有误";
        }
        return flag;
    }

</script>
</head>
<body>

<div class="rg_layout">
    <div class="rg_left">
        <p>新用户注册</p>
        <p>USER REGISTER</p>

    </div>

    <div class="rg_center">
        <div class="rg_form">
            <!--定义表单 form-->
            <form action="#" id="form" method="get">
                <table>
                    <tr>
                        <td class="td_left"><label for="username">用户名</label></td>
                        <td class="td_right">
                            <input type="text" name="username" id="username" placeholder="请输入用户名">
                            <span id="s_username" class="error"></span>
                        </td>

                    </tr>

                    <tr>
                        <td class="td_left"><label for="password">密码</label></td>
                        <td class="td_right">
                            <input type="password" name="password" id="password" placeholder="请输入密码">
                            <span id="s_password" class="error"></span>
                        </td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="email">Email</label></td>
                        <td class="td_right"><input type="email" name="email" id="email" placeholder="请输入邮箱"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="name">姓名</label></td>
                        <td class="td_right"><input type="text" name="name" id="name" placeholder="请输入姓名"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="tel">手机号</label></td>
                        <td class="td_right"><input type="text" name="tel" id="tel" placeholder="请输入手机号"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label>性别</label></td>
                        <td class="td_right">
                            <input type="radio" name="gender" value="male"> 男
                            <input type="radio" name="gender" value="female"> 女
                        </td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="birthday">出生日期</label></td>
                        <td class="td_right"><input type="date" name="birthday" id="birthday" placeholder="请输入出生日期">
                        </td>
                    </tr>

                    <tr>
                        <td class="td_left"><label for="checkcode">验证码</label></td>
                        <td class="td_right"><input type="text" name="checkcode" id="checkcode" placeholder="请输入验证码">
                            <img id="img_check" src="img/verify_code.jpg">
                        </td>
                    </tr>


                    <tr>
                        <td colspan="2"  id="td_sub"><input type="submit" id="btn_sub" value="注册"></td>
                    </tr>
                </table>

            </form>


        </div>

    </div>

    <div class="rg_right">
        <p>已有账号?<a href="#">立即登录</a></p>
    </div>


</div>


</body>
</html>